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Topic: dumb matrix question
Replies: 8   Last Post: May 12, 2011 3:14 AM

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Eli Osherovich

Posts: 37
Registered: 6/5/05
Re: dumb matrix question
Posted: Apr 26, 2011 8:34 AM
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On 04/22/2011 04:54 AM, vjp2.at@at.BioStrategist.dot.dot.com wrote:
> If I want to divide the elements of a row of a matrix by the sum of that row,
> is there a simple MATRIX op (in MatLab) that will do this?
>
>
> - = -
> Vasos Panagiotopoulos, Columbia'81+, Reagan, Mozart, Pindus, BioStrategist
> http://www.panix.com/~vjp2/vasos.htm
> ---{Nothing herein constitutes advice. Everything fully disclaimed.}---
> [Homeland Security means private firearms not lazy obstructive guards]
> [Urb sprawl confounds terror] [Phooey on GUI: Windows for subprime Bimbos]
>
>
>
>


Another two option can be:

(diag(sum(a'))\a)

or

(a'/diag(sum(a')))'


P.S.
You can replace sum(a') with sum(a, 2) (which one is better depends on
Matlab's internals).



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